Ultrasonic probe



FIG. 1 is a front perspective view of an ultrasonic probe, showing our new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being identical thereto;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a top view thereof.

The broken line showing of the flexible portion is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an ultrasonic probe, as shown and described. 